红宝石 |数组 delete_at() 操作

Array#delete_at() ：delete_at()是一个 Array 类方法，用于删除上述索引处的数组元素。

Syntax:  Array.delete_at()

Parameter:  index - value at specific index value to delete

Return:  deleted element, nil - if the index value is out of range

代码 #1：delete_at() 方法的示例

输出 ：

delete : 6

delete : 1

delete : 

代码 #2：delete_at() 方法的示例

红宝石

# Ruby code for delete_at() method
 
# declaring array
a = [18, 22, 33, nil, 5, 6]
 
# declaring array
b = [1, 4, 1, 1, 88, 9]
 
# declaring array
c = [18, 22, nil, nil, 50, 6]
 
# delete
puts "delete : #{a.delete_at(5)}\n\n"
 
# delete
# printing if no such element is found
puts "delete : #{b.delete_at(0)}\n\n"
 
# delete
puts "delete : #{c.delete_at(20)}\n\n"

输出 ：

delete : nil

delete : 

delete : cat